Gas-scrubber.



E. YAWGER.

GAS SGRUBBER.

APPLICATION FILED JAN. 19, 1906.

968,307. Patented Aug. 23, 1910 WIiNESSES: INVENTOR ATTORNEY STATES PATENT orr on.

EDWIN YAWGER, OF EDG-EWOOD PARK, PENNSYLVANIA, ASSIGNOR TO THE WEST- INGHOUSE MACHINE COMPANY A CORPORATION OF PENNSYLVANIA.

GAs-scRU BEn.

Specification of Letters Patent.

--Patent ed Aug. 23, 1910,

Application fild'iTanuary 19, 1906. 'serial r cesses,

" To all whom} it may concern;

Be it known that I, EDWIN YAWGER, a citizen of the United dent of Edgewood Park, in the county of Allegheny andState of Pennsylvania, have invented a new and useful Improvement in Gas-Scrubbers, of which the following is a specification.

' centrifugal gas scrubber of simple construc This invention relates to gas scrubbers and has for an. object the production of a tion that isefi'ective and economical in operation. r

' A further object is the production of a gas scrubber that will efl'ectively remove all solid material, dust, tar r tarry- Vapor that the gas may hold in suspension.

.A' further object is the production of a centrifugal scrubber from-which the recre= ment material collected from; the gas may be withdrawn without ailecting the operation of the apparatus.-

46 gas'inlet port 9 connected-to a These and other objects I attainin an apparatus embodying the'features herein described and illustrated. i

In the single sheet drawing accompanying this application and forming a part thereof a vertical section of ascrubber embodying I this invention is shown.

v A rotor 2 is rigidly mounted ona vertical shaft 3 which is suitably jonrnaled in the exteriorcasing of the scrubber and is provided with an operating pulley5. The rotor consists of a truncated cone-shaped hub portion 6 surrounded by an'inclosing casing 7 which is supported on the hub by suitable bs 8. The exterior casing 4 is provided with-a supply pipe 10, a water supply pipe 11 and a baseportion 12 which consists-of a water bottom adapted to seal the interior of. the casing.

gas ofitake passage 13 extends through the water bottom 12 and connects the interior ofthe casing with an offtake pipe 14:, which communicates, with a gas main or with other purifying apparatus; I

The cylindrical wall 15 of the casing .4

extends downwardly into thewater bottom of the base portion 12, which is provided with a water discharge pipe 16 arranged to maintain a definite amount of water in the base portion and thereby seal the lower" edges of the'wa'll' 15', between which and the bottom of the base portion 12 an open- States and a resitween the lower face of the conical wall of the through the pipe 11, is

\ ing 17 is maintained allowing access into the interiortof the casing. The'interior of the. casing is divided into chambers 18 and 19 by a diaphragm or partition 21. The rotor'2 is located in the chamber 19 which connects with the water seal opening 17; the gas and water supply ports 9 and 11 respectively communicate with the chamber 18.

lnclosed between a circularwall 22 of the rotor casing '7 and the'top surface of the hub portion 6 is a passage 23 which communicates with the chamber 18 through a circular opening 24. A chamber 25 of largerdr ameter than the chamber 23 is inclosed bethe hub portion '6 and a circular wall 26 ot thefc'asing 7; The

chamber 25 communicates with the gas outlet passage 13 through a circular opening 27 and with the chamber 23 through an annular passage 28, which is inclosed between hub portion 6 and the cylindrical portion ofthe casing7 parallel to .it.

g, All annular row of recrement discharge openings 29 in the ,rotor casing 7 open from the passage 28 into the chamber 19 which communicates'with the chamber 18 through suitable openings 30 located in the parti tions 21. The chamber 18' communicates with the chamber 23 of the rotor casing through annulargy arranged ports 3land the circular opening 2 1.

The -water entering the. chamber 18,

collected by an integrally formed ring 32 of the,partition' 21 and is discharged into the chamber 23' through the gas inlet ports 31.

The operation of the apparatus is as follows: The rotor 2 is rotated at a suitable speed and gasis admitted-through the port 9 to the chamber 18, andin passing therethrough is wet and cooled by the water en-- tering the chamber through the pipe 11. The gas and water enter the rotor passages and the circular opening 24.

The gas on entering the rotor passages 1s subjected to the centrifugal force occasioned by the rotation, butv because ofthe .rotors construction, that-.is, the arrangement of the webs 8', there is little or no relative rotary motion between it, the said gas, and the rotore,

Thewater in entering the passage 23,

through the opening 24, is thrown outthrough the annularly arranged ports .31 0

wardly by the centrifugal force and is distributed throughout the passages 23 and 28 by the rotary motion, thereby wetting the surfaces of the passages and the webs 8.

. webs 8, and thendust and particles of tarry material mechanically entrained are either collected by the wet surfaces or projected by their acquired centrifugal force against the inclined sides of the passage 28. I

The gas in leaving the passage 23 turns almost at right angles on entering the passage 28; this'arrangement aids the operation of scrubbing the gas as the recrement articles, because of their weight, or more properly their inertia, resist the sharp turn and lodge on the outer Wall of the. passage 28, which is wet by a continuous flow of water discharged from the passage 23. Since the passage 28 is cone-shaped, the

scrubbing action of the centrifugal force on the gas increases as the gas passes therethrough and the refuse material and cleansing water is impelled along the inclined walls of the passage by the combined action of gravity and a'component of the centrifugal force, and is dischargedfrom the rotor through the discharge ports 29, which are located at the bottom of the passage in the zone of the greatest centrifugal action.

The gas in leaving the passage 28 and en tering the passage 25 is turned through an acute angle and impelledin a direction directly opposite to the action of the centrifugal force; the dust, tar and particles of moisture that the gas may carry are therefore'checked by the centrifugal force and dropping to the bottom of the passage25 are discharged through the recrement 'ports 29.

The recrement and the water discharged from the ports 29' drop into the water bottom 12, from which the recrement may be drawn through the water sealed opening 17 without interfering with the operation of the apparatus. I

i The gas discharged from-the rotor passages through the ports 29 into the chamber 19 returns to the chamber 18 through the ports 30, and with this arrangement the tendency of the gas t0 leak through the joints between the rotor and the stationary casing, and thereby escape the scrubbing action, is overcome.

,The webs 8 may be rearwardly inclined with reference to the motion of the rotor,

thereby facilitating the flow of gas through the passage, and to-some extent compensating the velocity losses due to the friction which the inertia of the gas occasions in causing the gas to lag behind the rotor.

The .gas may be propelled through the scrubber by a rotary or any other form .of

impure gas,'me ans for introducing water to .said passage, means for progressively increasing the action of centrifugal force upon the recrement material separated from said gas and water in said passage, a gas admission port, a gas exhaust port, and means for scrubbing thegas passing through said passage, in combination with an inclosing passage provided with a gas inlet port, a gas outlet port, a recrement discharge port, and a water seal forsaid recrement discharge port.

means for introducing water to said pas- 2. A gas purifier comprising a rotatable element provided with interior gas passages,

actionof centrifugal force upon the recrement material separated from-said gas and water in said passage, a gas admission port, a gas exhaust. port, means for scrubbing the gas passing through said passages and ports for discharging the recrement from said passages and an inclosing casing for said element provided with a gas. inlet port, a gas outlet port, and a waterr sealed recrement discharge port.

3. A gas purifier comprising a rotatable element provided, with a gas scrubbing passage,

means for introducing water to said passage, means for progressively increasing the action of centrifugal force upon the recrement material separated from said gas and water in said passage, a gas admission port, a gas exhaust port, and a recrement discharge port communicating with said passage, and means for scrubbing the gas passing through municating with a gas admission port of said element and a recrement discharge said passage, in combination with an inclosing casing for said element which is pro- 'v ded with a gas admlssion chamber comchamber communicating with the recrement.

discharge of said element and provided with a water sealed recrement discharge port. 7

4:. A gas purifier, a rotatable element pro- 7 vide d with interior gas passagesfmeans for introducing water to said passages, means for progressively increasing the action of centrifugal force upon the recrement material separated from said gasand water in said passages, a gas admission port, a gas exhaust port, recrement discharge ports communicating with said passages, and means for scrubbing the gas passing therethrough, in combination with a stationary ment provided with an annular gas passage,'

casingfor said element provided with a gas delivery chamber communicating with the inlet port of said element, a recrement delivery chamber communicating with the recrement delivery port of said element, a source of water supply located within said gas delivery chamber and a pressure equalizing passage between said admission chambe! and said recrement chamber.

5; A gas purifier comprising a rotatable elemeans for introducing water to said passage,

-means for progressively increasing the action of centrifugal force upon the recrement material separated from said gas and water in said passage, a gas admiss on port, a gas exhaust port and recrement discharge ports communicating with said passage, and means within said passage for scrubbing the gas and for facilitating the flow of gas therethrough, in combination with an inclosing casing for said elementdivided into a gas admission chamber through which the gas is delivered and which communicates with the gas inlet .port of said element, and

a gas deliver y portwhich communicates with the recrementdischarge ports of said element and is provided with a water sealed recrement discharge port and a gas delivery port which communicates directly with the gas delivery port of said element.

' In a gas purifier an outer casing and an inner casing, a shaft for the inner casing provided with a hub symmetrical with the inner casing, an inlet port at the top of the inner casing to admit gas and water, a gas outlet port sealed recrement discharge openings for the for the inner casing water inner casing, and a gas out-letspace between.

the inner and outer casing pass from the recrement back through the inlet port at the top of the inner casing. V

In testimony. whereof, I have hereunto subscribed my name this 17th day of January, 1906.

- EDWIN YAWGER.

whereby gas may Witnesses:

J. L. HALL, CHARLES W. McGHEn.

discharge opening 

